Will the Marriage Measure definitely come into effect on 1st Oct 2008?

Dear Resident Reverend,

I have contacted the church of my parent's parish that I and my younger siblings were all christened in, and they said we could marry there either when the law changes, or by applying for a special licence.
As our wedding is not until May 2010, the church are happy to hold the date provisionally while we wait to see what happens with the new Marriage Measure.
Is it definite that it is being introduced in Oct 2008? The lady at the church office wasn't sure when it would be introduced and so I was wondering whether 1st October is a guess or whether it may be delayed or not happen.
I would be grateful for your advice on this. Also am I right in thinking that if my I attended this church regularly for 6 months (as it is the next parish along from the one we live in) that we would then be eligible to join the church electoral role and marry by banns anyway, whether the new marriage measure is introduced or not, as I would be more than happy to attend regularly.

Many thanks

A